Re: SN7400N Quad opamp which side is pin 1?
It is not an op amp. It is a quad nand gate. On round devices, the tab is the last pin.toggle quoted messageShow quoted text
Carl Hallberg (W9CJH)
On Wednesday, April 22, 2020, 9:33:18 AM CDT, DW <email@example.com> wrote:
Here is a rather unusual design at least for me. This chip contains both the notch and the circle, I want to say the notch is pin 1 but I am not 100% certain that might be the case, any thoughts? I am trying to be certain not to install it in reverse.